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Which of the following linear polynomials can represent the decay of a quantity as time increases?निम्नलिखित में से कौन-सा रैखिक बहुपद समय बढ़ने पर किसी राशि के क्षय को दर्शा सकता है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: \(12-3t\)\(12-3t\)
In \(12-3t\), the coefficient of \(t\) is \(-3\), so the value falls by 3 for each unit increase in time. \(3t+12\) represents growth. Exam tip: for linear decay, check for a negative coefficient of \(t\).\(12-3t\) में \(t\) का गुणांक \(-3\) है, इसलिए समय बढ़ने पर मान हर इकाई समय में 3 घटता है। \(3t+12\) वृद्धि दर्शाता है। परीक्षा टिप: रैखिक क्षय के लिए \(t\) का गुणांक ऋणात्मक देखें।
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